Research on the Transfer Space Form of Railway and Subway in Transportation Hub

Research purposes: Railway and subway are two main functions of transportation hub, and the transfer function relationship between them determines the formation and organization logic of spatial form in the hub. Through the analysis, generalization and classification of a large number of typical cases, this paper shows the diversified characteristics of different transfer functions and spatial forms between railway and subway in urban comprehensive transportation hub, and explores its internal generation law. Research conclusions:(1) The transfer space form of railway and subway in transportation hub can be roughly divided into three types: horizontal linear transfer space, horizontal enclosed transfer space and vertical layered and dredged transfer space, and the transfer functions served by different space forms have different emphases on the transfer distance, orientation and identification, and the ability of relieving sudden passenger flow. (2) The fire separation form in transfer space has certain influence on its spatial continuity and visual permeability. (3) The optimization of transfer function and spatial form is accompanied by the increase of the overall or local scale of the hub, so the design should be considered comprehensively. (4) The research conclusion can provide guidance and help for the design and re-innovation of the transfer space of the subsequent transport hub projects. © 2020, Editorial Department of Journal of Railway Engineering Society. All right reserved.